README.1ST
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mpeg/mp3
开发平台:
C/C++
- *************************************************************************
- ISO MPEG Audio Subgroup Software Simulation Group (1996)
- ISO 13818-3.2 MPEG-2 Audio Codec
- $Id: readme.1st 1.10 1997/01/28 12:00:48 de Bont Exp $
- $Log: readme.1st $
- Revision 1.10 1997/01/19 23:00:48 de Bont
- Distribution 10. Bug fixes and compliance to 13818-3.2
- Revision 1.9 1997/01/19 23:00:48 rowlands
- Distribution 09. Improved code robustness for some combinations of
- parameters.
- Revision 1.7 1996/02/14 06:08:44 rowlands
- Distribution 07. Added much multichannel encoder and decoder
- functionality. Added complete layer 3 to low sampling rate.
- Revision 1.5 1995/07/14 08:14:16 rowlands
- Added more audio channel configurations, fixed dynamic crosstalk
- bugs, and added two-channel low sampling frequency support.
- Revision 1.4 1995/06/22 01:25:45 rowlands
- Distribution 04, with decoder dynamic crosstalk
- Revision 1.3 1995/06/19 03:30:12 rowlands
- Distribution 03, with decoder mods and bug fixes
- Revision 1.2 1995/06/16 11:12:43 rowlands
- Separated text documents
- Revision 1.1 1995/06/16 10:58:27 rowlands
- Initial revision
- *************************************************************************
- MPEG-2 Audio Simulation Software Distribution 10
- ================================================
- $Date: 1997/01/28 12:00:48 $
- This package contains source code for the MPEG-2 audio encoder and decoder
- under development by the MPEG/audio software simulation ad-hoc group. The
- package includes the multichannel and low sampling frequency extensions
- in MPEG-2 audio.
- The following table indicates the operations supported by the multichannel
- software in this distribution. The multichannel encoder and decoder have been
- amended compared to dist09. The bug fixes mostly fix combinations of parameters
- which caused reliability problems. Furthermore both encoder and decoder are now
- compliant to 13818-3.2.
- Feature Encoder Decoder
- -----------------------------------------------------------
- Sampling_frequency (kHz) 32,44.1,48 32,44.1,48
- Bit_rate (kb/s) >=32 >=32
- Bitstream format DIS 13818-3.2 DIS 13818-3.2
- Extension bitstream Y Y
- Layer 2 1,2
- Channel configuration 5/2,3/2,3/1, 5/2,3/2,3/1,
- 3/0(+2/0), 3/0(+2/0),
- 2/2,2/1, 2/2,2/1,
- 2/0(+2/0), 2/0(+2/0),
- 1/0(+2/0) 1/0(+2/0)
- LFE Y Y
- Multilingual Y Y
- Dematrix procedure 0,1,2,3 0,1,2,3
- TC allocation Y Y
- Dynamic crosstalk Y Y
- Prediction Y Y
- Phantom_center Y Y
- Ancillary data Y Y
- File I/O AIFF,raw AIFF,raw
- The following features are NOT supported by this distribution:
- * layers 1 or 3 wrt. the encoder
- * layer 3 wrt. the decoder
- The decoder passes all multichannel compliance bitstreams except for the
- layer 3 bitstream.
- The following table indicates the operations supported by the low
- sampling frequency software in this distribution. The noise allocation
- in the layer 3 encoding procedure has been made more robust.
- Feature Encoder Decoder
- -----------------------------------------------------------
- MPEG- 1,2 1,2
- Sampling_frequency (kHz) 16,22.05,24, 16,22.05,24,
- 32,44.1,48 32,44.1,48
- Bit_rate (kb/s) 8-448 8-448
- Bitstream format IS IS
- Layer 1,2,3 1,2,3
- Ancillary data N N
- File I/O AIFF,raw AIFF,raw
- Sampling rate conversion N N
- The following features are NOT supported by this distribution:
- * lower sampling frequencies for layer 3 in the encoder
- * psychoacoustic model 1 for lower sampling frequencies in the encoder
- * psychoacoustic model 1 for layer 3 in the encoder
- The decoder passes all lower sampling frequency compliance bitstreams.
- The package consists of the following tree of files. The contents of the
- RCS and tables directories are not listed for brevity.
- dist10/
- Readme.1st
- doc/
- readme.1st
- readme.dp.01.txt
- readme.jmz.01.txt
- readme.jmz.02.txt
- readme.jmz.03.txt
- readme.jmz.04.txt
- readme.mc.01.txt
- readme.rb.01.txt
- readme.sn.01.txt
- readme.sr.01.txt
- readme.sr.02.txt
- readme.ss.01.txt
- lsf/
- decoder/
- INSTALL
- Makefile
- Makefile.in
- common.c
- common.h
- configure
- decode.c
- decoder.h
- huffman.c
- huffman.h
- ieeefloat.c
- ieeefloat.h
- makefile.linux
- makefile.unix
- musicout.c
- portableio.c
- portableio.h
- tables/
- encoder/
- INSTALL
- Makefile
- Makefile.in
- common.c
- common.h
- configure
- encode.c
- encoder.h
- formatBitstream.c
- formatBitstream.h
- huffman.c
- huffman.h
- ieeefloat.c
- ieeefloat.h
- l3bitstream-pvt.h
- l3bitstream.c
- l3bitstream.h
- l3psy.c
- l3psy.h
- l3side.h
- loop-pvt.h
- loop.c
- loop.h
- makefile.unix
- mdct.c
- mdct.h
- musicin.c
- portableio.c
- portableio.h
- psy.c
- reservoir.c
- reservoir.h
- subs.c
- tables/
- tonal.c
- mc/
- decoder/
- common.c
- common.h
- decode.c
- decoder.h
- makefile
- musicout.c
- tables/
- encoder/
- common.c
- common.h
- dyn_cross.c
- encode.c
- encoder.h
- lfe.c
- lingual.c
- makefile
- musicin.c
- predisto.c
- psy.c
- subs.c
- tables/
- tonal.c
- tool/
- pcm2aiff/
- common.h
- decoder.h
- pcm2aiff.c
- regards,
- Frans de Bont
- 28 Jan 1997